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Finding the Fourth Proportional to 616,436.48, 850,708.61 and 344,504.36

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Solution

The fourth proportional to 616,436.48, 850,708.61 and 344,504.36 is: 475,430.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,436.48 : 850,708.61 = 344,504.36 : x
  2. Step 2: Convert to fraction form
    616,436.48/850,708.61 = 344,504.36/x
  3. Step 3: Cross multiply
    616,436.48x = 850,708.61 × 344,504.36
  4. Step 4: Simplify right side
    616,436.48x = 293,072,819,258.48
  5. Step 5: Solve for x
    x = 293,072,819,258.48/616,436.48
  6. Step 6: Final answer
    x = 475,430.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.